During the 1980's the city of London experienced a chess renaissance that made it the premier chess capital of the West. The culmination of this activity was to host the first half of the World Championship Centenary Match in 1986. The other events that helped London achieve this status included the Second USSR vs The Rest Of The World Match in 1984 and a series of tournaments sponsored by the stock-broking firm Phillips & Drew ( See Game Collection: London Phillips & Drew 1980 and Game Collection: Phillips & Drew Kings Chess Tournament 1982 also ).
This 1984 tournament was a fourteen player category 14 event and was sponsored by both Phillips & Drew and the Greater London Council. It was also the first ever all GM tournament to be held in the United Kingdom. It ran from the 26th of April to the 11th of May and was held in the County Hall, London.
Rounds took place on the dates given below with rest days on the 30th of April and the 4th and 10th of May.

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Thanks to <Tabanus> and <Chessical> for finding the dates on which the rounds took place.